Soot-consuming device



SOOT CONSUMING DEVICE Filed March 29. 1923 2 Sheets-Sheet 2 INVENTOR ATTORNEY Patented Sept. 23, 1924.

UNITED vSTATES 1,509,724 PATENT OFFICE.

PAUL FRAME, 0F BALTIMORE, vMARYLAND, ASSIGNOR TO GAS & ELECTRIC APPLI- ANCE CORPORATION, A CORPORATION OF MARYLAND.

snor-consomme nEvIcE.

Application led March 29, 1923. Serial No. 628,537.

To all whom t may concern.' 4

Be it known that I, PAUL FRAME, a cit-A izen of the United States, and resident of Baltimore, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Scot-Con# to prevent fouling of walls and hangings. f

An object of this invention is to provide an improved means for mounting the soot catching material and to sim lify the construction, making such devices of fewer parts yet durable and rigid..

`Accordin to this invention, a steel wool mat is hel in a Hue from a gas or other range, and the end of the Hue carries a hood supported on a plurality offngers, the hood carrying a second mat. The mats .are of novel construction comprising a spring ring to frictionally engage the pipe or hood and carrying the mat. In the' referred embodiment, the hood is spot welded to fingers on the Hue pipe formed by slotting the upper end of said pipe to provide a rigid and light unita structure.

Referring tot e drawings: s

Fig. 1 is a side view, partly in section,

Fig. 2 is a' top view of Fi 1,

Fig. 3 shows a detail o? the split rin-g and mat, l

Fig. 4 is a side view partly in section showing a modification,

Fig. 5 is a section on the line 5h45"l of Fig. 4, and

.Fig. 6 is a detail of one of the supporting fingers.

The Hue 10 is located om hood 9 over a range or the like to catch the cooking vapors and products of combustion. Located within the Hue pipe, which is relatively short, is an incombustible mat 11 of material for catching and preferably consuming grease, soot, and other impurities contained in cooking vapors. Such a material is metal wool, and it has been found that #3 steel wool is particularly suitable and effective to consume the impuritiesfas by slow combustion without getting fouled from soot and grease, as do ordinary Hlter materials, such as asbestos, which do not consume the soot and grease. Mounted on the Hue pipe is a steeply inclined overhanging hood 12 provided with an upper collar 13 in which is located another mat 14 of self-cleaning steel wool. The heated air risingr outside the Hue ipe 10 is` caught and directed inwardly by tlie hood 4to increase the draft through the mat 11. As shown, the hood extends below the large openings 16 between the upstanding fingers 15 to which the hood 12 is spot welded. If desired the mat 14 0f steel wool may be of less thickness than layer 11 to offer less resistance t0 the draft. As a means for conveniently mounting the mats 11 and 14, split rings 17 are provided, as shown in F ig. 3. The steel wool may be wrapped around the edges of the split ring and the ring contracted and then sprung in place in one ofy the beads 18, to retain the wool within the Hue pipe. A number of these beads may be provided in ordery to make the layer of non-fouling metal wool adjustable and have it placed at the desired' height wit-hin the Hue pipe to obtain the best accentuation of draft Within thetpipe and cooperation between the separated mats.

A similar bead 19 is provided in the collar portion 13 for the same purpose of retaining a split ring. This split ring construction is useful for holdin a Hlter mat, such as asbestos or glass woo or the like, aswell as the preferred metal soot consuming wool. The hood and Hue pipe are referably stamped from sheet metal an the hood may be provided with a strengthening bead 2O in its skirt portion. The upstanding collar portion 13, as well asthe beads 18 and 19 are all formed in the stamping operations.

Figures 4 to 6, inclusive, show a modification in which the hood'is mounted on a plurality of supporting fingers 21. Each of these Hngers 1s provided at the top with a bent up portion 22 adapted to be secured to the sklrt portion of the hood and ermit the lower portion ofthe supporting gers to be in a substantially vertical position. The lower part of each supporting finger 23 is split in a plurality of places so that the top of the Hue pipe maybe 'inserted within the splits and these lingers securely position the hood.

Among the advantages of this invention may .bey enumerated the simplicit of construction, whereby sheet metal is y stamping operationsformed into' a durable structure. The self-cleaning layers of metal wool are provided with a simple and effective supporting means in the split ring used. The form of invention illustrated in .Figures 1 to 3 shows a soot consuming ,flue

structure which is integral and unitary wherein the hood will not become accidentally displaced through jars.

VIt will be understood that the invention may be used wherever it may be desired to remove soot and impurities from heated gases and vapors 'without becoming covered with an objectionable deposit.

I claim: l 1. A device for catching ilue impurities comprising a split expansible ring removably carrying a non-combustible non-fouling steel woo mat.

2. The combination with a flue pipe, of a hood above said pipe, a :mat carried by the hood, and a lower mat adjustably :carried by the pipe below the hood.

3. In combination a flue pipe provided with a plurality of recesses at different heights, and a non-fouling metal wool mat adapted to be adjustably secured at the de sired height within one of said recesses.

4.- The combination with a iue pipe hat ing a peripheral oove, of a split ring, and a self-cleaning ter material of steel wool held in said pipe groove bv said ring.

5. The combination with a iue pipe, of a hood spaced therefrom and above the pipe, a stamped-up collar portion surmounting the hood, the pipe, hood, and collar each having strengthening beads stamped therein, and the top of said pipe having opstand ing fingers to which the hood is secured.

6. rlhe combination with a fine pipe, of a hood mounted above the pipe and spaced from at least a portion thereof, more than two fingers supporting said hood on the pipe, an upstanding collar portion on thc hood provided with a groove therein, a split ring in said groove, and anon-fouling metal Wool mat retained in position in said collar portion by said ring.

Signed at Baltimore, in the county of Baltimore and State of Maryland, this 27th day of March A. D. 1923.

PAUL FRAME. 

